tordate mechanism is essentially disabled in the test suite due to incorrect vstart/vend expectations
See #18367 (comment 172586) and follow-ups.
Given tordate should go away in the next few months, I don't think we should spend time on this, but let's at least record it so that hopefully nobody has to re-discover it independently.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information